Name: Duck, with Carrots
Ingredients: remains of cold ducks; 3 or 4 large carrots; 2 cups Espagnole sauce; 2 tablespoons butter; 1 teaspoon sugar; salt to taste; pepper to taste

Why it works: Carrot and pepper match in chemistry and in kitchens. They rank in the top 6% of all ingredient pairs, and cooks put them together in 14,555 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Duck, with Carrots

Ingredients

Directions

Prepare the carrot purée

Boil the carrots in a small amount of water with a piece of sugar until tender.
Rub the carrots through a fine sieve, season with salt and pepper, and add the butter.
Reheat the mixture.

Cook the duck and serve

Cut the ducks into serving pieces and place them in the hot sauce.
Simmer gently for 30 minutes.
Place the carrot puree on a hot dish and arrange the duck pieces on top.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

Carrot + peppertop 6% of all pairs

Smell alikestrong

Cooked together14,555 recipes

Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Sauce + sugartop 13% of all pairs

Smell alikestrong

Cooked together5,147 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Sauce + buttertop 15% of all pairs

Smell alikelow

Cooked together15,338 recipes

Shared aroma: ethanol (alcoholic, ethereal).
Butter + sugartop 17% of all pairs

Smell alikemoderate

Cooked together98,233 recipes

Shared aroma: guaiacol (smoky, sweet).
Butter + peppertop 21% of all pairs

Smell alikemoderate

Cooked together85,593 recipes

Shared aroma: trans-2-nonenal (cardboard, fatty).

Sauce and butter barely smell alike, yet cooks put them together in 15,338 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Carrots: Cooked until tender and puréed, they give the dish its body, mild sweetness and colour.
Espagnole sauce: Forms the rich, savoury liquid in which the duck is heated and simmered.
Butter: Added to the purée to enrich its texture and add a smooth, rounded flavour.
Cold ducks: Cooked pieces provide the main protein and savoury meaty flavour of the dish.

The step that matters

Simmer gently for 30 minutes. Gentle heat keeps the duck tender and prevents the sauce from reducing too fast or turning tough; a hard boil would toughen the meat and can break the sauce.

Swap the carrot

How well each one fits the dish's main ingredients (sauce, butter, sugar, pepper):

Capsicumfits better
Mustardfits better
Shallotfits about as well
Carrotthe original

Fit is the average pairing score against sauce, butter, sugar, pepper. Candidates are from the same food group and used in at least 100 recipes.

“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.

Carrot Soup134 recipes

Tomato Soup526 recipes

Brown Bread461 recipes

Mutton Broth292 recipes

Like knowing why a recipe works?

The free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.

Prefer an account? Create a free account to save pairings and unlock the full chemistry.

Duck, with Carrots